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Finding the Fourth Proportional to 303,329.80, 455,273.96 and 153,674.20

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Solution

The fourth proportional to 303,329.80, 455,273.96 and 153,674.20 is: 230,652.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,329.80 : 455,273.96 = 153,674.20 : x
  2. Step 2: Convert to fraction form
    303,329.80/455,273.96 = 153,674.20/x
  3. Step 3: Cross multiply
    303,329.80x = 455,273.96 × 153,674.20
  4. Step 4: Simplify right side
    303,329.80x = 69,963,861,583.83
  5. Step 5: Solve for x
    x = 69,963,861,583.83/303,329.80
  6. Step 6: Final answer
    x = 230,652.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.